User Portlet User Portlet

Discussions
An underdetermined system of differential equations may have infinitely many solutions--like a single equation with two dependent variables. How can one find any (all?) solutions?
You are very helpful. Thank you sincerely.
Very helpful. Thank you.
It's a great help. Thanks. It returns the coordinates of all three bodies together. Now I would like to plot the coordinates of the individual bodies.
Very helpful. Thank you, gentlemen.